Huangbo Xiyun was an influential Chinese Chan Buddhist master from Fujian province, renowned for his role in developing the “sudden enlightenment” approach and mentoring Linji Yixuan (founder of the Linji/Rinzai school). As a disciple of Baizhang Huaihai, he became famous for his uncompromising teaching style — using shouts, strikes, and paradoxical dialogues to awaken…